Friday, Jul 12, 2013 - 6:00 AM
"Crash: A Tale of Two Species"
The humble horseshoe crab, virtually unchanged for 300 million years, produces millions of eggs. They are the lifeline for a tiny bird called a red knot, which migrates 10,000 miles from South America to the Arctic. But even as humans discover medical uses for the crab, its numbers are plummeting.G